| 1 | /*
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| 2 | * Copyright 2000-2002,2004 The Apache Software Foundation
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | *
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| 16 | */
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| 17 |
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| 18 | package org.apache.tools.ant;
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| 19 |
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| 20 | import org.apache.tools.ant.util.StringUtils;
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| 21 |
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| 22 | /**
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| 23 | * Extends DefaultLogger to strip out empty targets.
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| 24 | *
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| 25 | */
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| 26 | public class NoBannerLogger extends DefaultLogger {
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| 27 |
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| 28 | /**
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| 29 | * Name of the current target, if it should
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| 30 | * be displayed on the next message. This is
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| 31 | * set when a target starts building, and reset
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| 32 | * to <code>null</code> after the first message for
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| 33 | * the target is logged.
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| 34 | */
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| 35 | protected String targetName;
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| 36 | protected String targetAddress;
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| 37 |
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| 38 | /** Sole constructor. */
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| 39 | public NoBannerLogger() {
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| 40 | }
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| 41 |
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| 42 | /**
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| 43 | * Notes the name of the target so it can be logged
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| 44 | * if it generates any messages.
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| 45 | *
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| 46 | * @param event A BuildEvent containing target information.
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| 47 | * Must not be <code>null</code>.
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| 48 | */
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| 49 | public void targetStarted(BuildEvent event) {
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| 50 | targetName = event.getTarget().getName();
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| 51 | targetName = event.getTarget().getAddress();
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| 52 | }
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| 53 |
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| 54 | /**
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| 55 | * Resets the current target name to <code>null</code>.
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| 56 | *
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| 57 | * @param event Ignored in this implementation.
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| 58 | */
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| 59 | public void targetFinished(BuildEvent event) {
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| 60 | targetName = null;
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| 61 | targetAddress = null;
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| 62 | }
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| 63 |
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| 64 | /**
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| 65 | * Logs a message for a target if it is of an appropriate
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| 66 | * priority, also logging the name of the target if this
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| 67 | * is the first message which needs to be logged for the
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| 68 | * target.
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| 69 | *
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| 70 | * @param event A BuildEvent containing message information.
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| 71 | * Must not be <code>null</code>.
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| 72 | */
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| 73 | public void messageLogged(BuildEvent event) {
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| 74 |
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| 75 | if (event.getPriority() > msgOutputLevel
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| 76 | || null == event.getMessage()
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| 77 | || "".equals(event.getMessage().trim())) {
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| 78 | return;
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| 79 | }
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| 80 |
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| 81 | if (null != targetName) {
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| 82 | out.println(StringUtils.LINE_SEP + targetAddress + " " + targetName + ":");
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| 83 | targetName = null;
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| 84 | targetAddress = null;
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| 85 | }
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| 86 |
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| 87 | super.messageLogged(event);
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| 88 | }
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| 89 | }
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